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A Control Method of Automotive Adaptive Headlight Angle Compensation Based on ATSM

A technology of compensation control and compensation controller, which is applied in the direction of vehicle components, signal devices, optical signals, etc., can solve problems such as insufficient flexibility, improve control accuracy and system chattering, improve compensation accuracy and control stability, reduce Effect of Small Adaptive Corner Error

Active Publication Date: 2021-02-12
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, the angle adjustment method of this headlight is relatively fixed and not flexible enough

Method used

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  • A Control Method of Automotive Adaptive Headlight Angle Compensation Based on ATSM
  • A Control Method of Automotive Adaptive Headlight Angle Compensation Based on ATSM
  • A Control Method of Automotive Adaptive Headlight Angle Compensation Based on ATSM

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with accompanying drawing.

[0034] The ATSM-based automotive adaptive headlight angle compensation control method, including steps:

[0035] S1. In order to ensure that the absolute error between the actual rotation angle of the headlight and the target rotation angle is within 5°, the headlight rotation angle compensation controller is designed based on the ATSM algorithm, such as figure 1 As shown, the flow of the control system to implement control is as follows figure 2 shown.

[0036] Define the sliding mode variables:

[0037] s=δ-δ i (1)

[0038] Where: δ is the target rotation angle of the headlight, δ i The actual cornering of the headlights.

[0039] Calculate the first and second derivatives of the sliding mode variables respectively, and get:

[0040]

[0041]

[0042] in: D is a normal number.

[0043] The first and second derivatives of the sliding mode variables are ex...

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Abstract

The invention discloses an automobile adaptive headlight steering-angle compensation control method based on adaptive twisting sliding mode, and belongs to the technical field of automobile adaptive headlights. The automobile adaptive headlight steering-angle compensation control method comprises the following steps that 1), an automobile adaptive headlight steering-angle compensation controller is designed based on an Adaptive Twisting Sliding Mode (ATSM) algorithm; 2), the adaptive law of the twisting sliding mode control gain in the step 1) is designed, and the adaptive law satisfies the formula shown in the specification; and 3), lyapunov function which satisfies the formula shown in the specification is constructed, the stability analysis of the designed control method is carried out,and the stability condition is given. The automobile adaptive headlight steering-angle compensation control method can effectively restrain the chattering of the controller, significantly improve theaccuracy of the steering-angle error compensation and the control stability, and effectively reduce adaptive steering-angle error of a headlight.

Description

technical field [0001] The invention belongs to the technical field of automobile self-adaptive headlights, and in particular relates to an ATSM-based method for controlling the corner compensation of automobile self-adaptive headlights. Background technique [0002] With the increase of car ownership year by year, the road environment is becoming more and more crowded and complex. Environmental factors such as weather conditions and human factors such as bad driving habits of drivers have aggravated the complexity of the road environment. The traditional low beam and high beam two simple lighting modes of automobiles are far from meeting the needs of driving safety, comfort and maneuverability. Compared with traditional headlights, the Adaptive Front-lighting System (AFS) can make adaptive adjustments according to factors such as vehicle speed, driving environment, and lighting conditions, flexibly realize various light distributions, and effectively ensure the And the lig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60Q1/08B60Q1/12
CPCB60Q1/085B60Q1/12
Inventor 耿国庆韦斌源刘国学孙丽琴王波谢建毅秦洪武
Owner JIANGSU UNIV